The electrocatalytic activity of YMnO3-based electrodes for the O2 and H2 evolution reactions in a strong alkaline medium
YMnO3 perovskites synthesized using the sol-gel method were studied regarding their electrocatalytic properties for the O2 and H2 evolution reactions (OER and HER) in a strong alkaline medium. The highest activity was observed during HER experiments, especially for the electrodes manufactured using...
Elmentve itt :
| Szerzők: | |
|---|---|
| Testületi szerző: | |
| Dokumentumtípus: | Könyv része |
| Megjelent: |
University of Szeged
Szeged
2023
|
| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
29 |
| Kulcsszavak: | Elektrokémia, Elektrokatalízis |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/82470 |
| Tartalmi kivonat: | YMnO3 perovskites synthesized using the sol-gel method were studied regarding their electrocatalytic properties for the O2 and H2 evolution reactions (OER and HER) in a strong alkaline medium. The highest activity was observed during HER experiments, especially for the electrodes manufactured using suspensions containing Nafion, Carbon Black and either Co2+ doped YMnO3 or Sn2+ doped YMnO3. For these samples, the HER overpotential value at i = ─10 mA/cm2 was 0.83 V. The main conclusions are the following: (a) the inclusion of Carbon Black into the electrode manufacturing process improved the HER catalytic activity of all perovskite-modified electrodes and (b) the HER activity of the samples modified with the catalysts, Nafion and Carbon Black was similar despite the different temperatures applied during perovskite synthesis. |
|---|---|
| Terjedelem/Fizikai jellemzők: | 339-343 |
| ISBN: | 978-963-306-963-9 |